Fixed structure for prefabricated composite wall and prefabricated composite wall component

Abstract

The present invention provides a fixing structure for prefabricated composite walls and a prefabricated composite wall assembly, wherein the fixing structure comprises a fixing frame, the fixing frame has an assembly groove, the fixing frame is detachably mounted on the prefabricated composite wall through the assembly groove, the assembly groove has a first groove wall and a second groove wall arranged opposite to each other, the first groove wall is connected to a first prefabricated board, the second groove wall is connected to a second prefabricated board, and the fixing frame fixes the relative position of the first prefabricated board and the second prefabricated board through the first groove wall and the second groove wall. The fixing structure for prefabricated composite walls of the present invention fixes the relative position of the first prefabricated board and the second prefabricated board through the fixing frame by setting a fixing frame, thereby replacing the original fixing method through steel pipes. When in use, the fixing frame can be directly mounted on the prefabricated composite wall, the installation process is simpler and more convenient, and a large amount of steel pipes are saved, greatly reducing time costs and material costs.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a fixing structure for prefabricated composite walls and a prefabricated composite wall assembly. Background Art

[0002] Composite wall is a concrete wall panel composed of two layers of prefabricated reinforced concrete formwork, connected by trusses or connectors to form a wall panel component with a middle cavity. After installation on site, concrete is poured to fill the middle cavity. As a "semi-prefabricated and semi-cast-in-place" structural system, it has good integrity and excellent waterproof performance.

[0003] Traditional engineering prefabricated composite walls use steel pipe top supports for on-site processing and reinforcement. This method requires selecting top support steel pipes of corresponding lengths according to the size of the window openings, and reinforcing the formwork through steel pipe top supports. The steel pipes need to be cut on-site according to the window openings of the prefabricated composite walls. This method is not only cumbersome and time-consuming, but also consumes a large amount of steel pipes, resulting in increased time and material costs. Summary of the invention

[0004] The main purpose of the present invention is to provide a fixing structure for prefabricated composite walls and a prefabricated composite wall assembly, so as to solve the problem that the fixing method of prefabricated composite walls in the prior art is complicated, resulting in increased time cost and material cost.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a fixing structure for a prefabricated composite wall, the prefabricated composite wall comprising a first prefabricated panel and a second prefabricated panel arranged at intervals, a pouring space for pouring concrete is formed between the first prefabricated panel and the second prefabricated panel, the fixing structure comprising: a fixing frame, the fixing frame having an assembly groove, the fixing frame being detachably mounted on the prefabricated composite wall through the assembly groove, the assembly groove having a first groove wall and a second groove wall arranged opposite to each other, the first groove wall being connected to the first prefabricated panel, the second groove wall being connected to the second prefabricated panel, the fixing frame fixing the relative position of the first prefabricated panel and the second prefabricated panel through the first groove wall and the second groove wall.

[0006] Furthermore, the fixing structure also includes: a push screw, which is passed through the fixing frame and the passing position of the push screw is located at the bottom of the assembly groove, and the push screw is used to push the sealing plate against the first prefabricated plate and the second prefabricated plate.

[0007] Further, the fixed frame includes a first side panel, a second side panel and a bottom panel, the first side panel and the second side panel are arranged opposite to each other, the bottom panel is connected between the first side panel and the second side panel, the first side panel, the second side panel and the bottom panel form the assembly groove; the first groove wall is located on the first side panel, and the second groove wall is located on the second side panel.

[0008] Further, the fixing structure also includes a first connecting screw, which is passed through the first side panel and connected to the first prefabricated panel, and a nut is provided on the first connecting screw, and the fixing frame fixes the first prefabricated panel to the first side panel via the first connecting screw and the nut; the fixing structure also includes a second connecting screw, which is passed through the second side panel and connected to the second prefabricated panel, and a nut is provided on the second connecting screw, and the fixing frame fixes the second prefabricated panel to the second side panel via the second connecting screw and the nut.

[0009] According to another aspect of the present invention, a prefabricated composite wall assembly is provided, comprising the above-mentioned fixing structure.

[0010] Furthermore, a first window opening is provided on the first prefabricated board, and a second window opening is provided on the second prefabricated board. The first window opening corresponds to the second window opening in position, and the fixing frame passes through the first window opening and the second window opening at the same time.

[0011] Furthermore, the first prefabricated panel and the second prefabricated panel simultaneously form a top gap with the bottom of the assembly groove; the prefabricated composite wall assembly also includes a sealing plate, which is arranged to pass through the top gap, and the sealing plate is simultaneously arranged on the first prefabricated panel and the second prefabricated panel, and the sealing plate is used to seal the casting space; the fixed structure also includes a top screw, which is passed through the fixed frame, and the passing position of the top screw is located on the bottom of the assembly groove, and the top screw is used to apply force to the sealing plate, and the sealing plate is simultaneously attached to the first prefabricated panel and the second prefabricated panel and sealed under the action of the force applied by the top screw.

[0012] Furthermore, the prefabricated composite wall assembly also includes: a pad block, which is arranged between the abutting screw and the sealing plate, and the abutting screw abuts the pad block against the sealing plate, and the sealing plate abuts against the first prefabricated plate and the second prefabricated plate at the same time through the pad block.

[0013] Furthermore, the fixing structure also includes a first connecting screw, which is passed through the first side panel and connected to the first prefabricated panel. A nut is provided on the first connecting screw, and the fixing frame fixes the first prefabricated panel to the first side panel through the first connecting screw and the nut; the prefabricated composite wall assembly also includes a first nut, which is pre-embedded in the first prefabricated panel, and the first connecting screw is threadedly connected to the first nut.

[0014] Furthermore, the fixing structure also includes a second connecting screw, which is passed through the second side panel and connected to the second prefabricated panel. A nut is provided on the second connecting screw, and the fixing frame fixes the second prefabricated panel to the second side panel through the second connecting screw and the nut; the prefabricated composite wall assembly also includes a second nut, which is pre-embedded in the second prefabricated panel, and the second connecting screw is threadedly connected to the second nut.

[0015] By applying the technical solution of the present invention, the fixing structure for prefabricated composite walls of the present invention is provided with a fixing frame, and the fixing frame is detachably mounted on the prefabricated composite wall through an assembly groove, and the first groove wall of the assembly groove is connected to the first prefabricated board, and the second groove wall of the assembly groove is connected to the second prefabricated board. That is to say, the first prefabricated board and the second prefabricated board are fixed in relative position by the fixing frame, thereby replacing the original fixing method by steel pipes. When in use, the fixing frame can be directly mounted on the prefabricated composite wall, and the installation process is simpler and more convenient, and a large amount of steel pipes are saved, which greatly reduces the time cost and material cost.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of a fixing structure according to Embodiment 1 of the present invention is shown; and

[0019] Figure 2 A schematic structural diagram of a fixing frame of a fixing structure according to Embodiment 1 of the present invention is shown;

[0020] Figure 3 A schematic structural diagram of a prefabricated composite wall assembly according to Embodiment 2 of the present invention is shown.

[0021] The above drawings include the following reference numerals:

[0022] 11. First precast plate; 12. Second precast plate; 13. Casting space; 20. Fixing frame; 21. Assembly groove; 22. First side plate; 221. First groove wall; 23. Second side plate; 231. Second groove wall; 24. Bottom plate; 31. First connecting screw; 32. Second connecting screw; 40. Abutting screw; 51. First nut; 52. Second nut; 60. Sealing plate; 70. Spacer. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "second", "secondary", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] In order to achieve the above purpose, Figure 1The first embodiment of the present invention shown in FIG. 1 provides a fixing structure for a prefabricated composite wall, wherein the prefabricated composite wall comprises a first prefabricated panel 11 and a second prefabricated panel 12 which are spaced apart from each other, wherein a pouring space 13 for pouring concrete is formed between the first prefabricated panel 11 and the second prefabricated panel 12, wherein the fixing structure comprises a fixing frame 20, wherein the fixing frame 20 has an assembly groove 21, wherein the fixing frame 20 is detachably mounted on the prefabricated composite wall through the assembly groove 21, wherein the assembly groove 21 has a first groove wall 221 and a second groove wall 231 which are relatively arranged, wherein the first groove wall 221 is connected to the first prefabricated panel 11, and the second groove wall 231 is connected to the second prefabricated panel 12, wherein the fixing frame 20 fixes the relative positions of the first prefabricated panel 11 and the second prefabricated panel 12 through the first groove wall 221 and the second groove wall 231.

[0028] The fixing structure for prefabricated composite walls of the present invention is provided with a fixing frame 20, and the fixing frame 20 is detachably mounted on the prefabricated composite wall through an assembly groove 21, and the first groove wall 221 of the assembly groove 21 is connected to the first prefabricated panel 11, and the second groove wall 231 of the assembly groove 21 is connected to the second prefabricated panel 12. That is, the first prefabricated panel 11 and the second prefabricated panel 12 are fixed in relative position by the fixing frame 20, thereby replacing the original fixing method by steel pipes. When in use, the fixing frame 20 can be directly mounted on the prefabricated composite wall. The installation process is simpler and more convenient, and a large number of steel pipes are saved, which greatly reduces the time cost and material cost.

[0029] It should be noted that there may be multiple installation frames, and the multiple installation frames are arranged at intervals on the prefabricated composite wall, so that the first prefabricated panel 11 and the second prefabricated panel 12 can be fixed more reliably.

[0030] In this embodiment, if Figure 2 As shown, the fixing frame 20 includes a first side plate 22, a second side plate 23 and a bottom plate 24. The first side plate 22 and the second side plate 23 are arranged opposite to each other. The bottom plate 24 is connected between the first side plate 22 and the second side plate. The first side plate 22, the second side plate 23 and the bottom plate 24 enclose the assembly groove 21. The first groove wall 221 is located on the first side plate 22, and the second groove wall 231 is located on the second side plate 23. In this embodiment, the first side plate 22 and the second side plate 23 are welded to the bottom plate 24 at the same time to form an assembly groove 21 with a C-shaped cross section. When in use, the assembly groove 21 is clamped on the prefabricated composite wall, the first prefabricated panel 11 is fixedly connected to the first side plate 22, and the second prefabricated panel 12 is fixedly connected to the second side plate 23, so as to realize the fixing of the first prefabricated panel 11 and the second prefabricated panel 12, and the installation and disassembly process is very convenient.

[0031] In the prior art, when pouring concrete, it is easy for the mold to expand at the window opening of the prefabricated composite wall, causing the concrete slurry to flow out and pollute the prefabricated composite wall, and it will also seriously affect the construction quality of the prefabricated composite wall. Therefore, in order to solve the above problems. The fixed structure also includes a push-up screw, which is inserted into the bottom plate 24, and the push-up screw is used to push the sealing plate 60 against the first prefabricated plate 11 and the second prefabricated plate 12. By using the push-up screw, the sealing plate 60 can be pushed against the first prefabricated plate 11 and the second prefabricated plate 12, thereby closing the pouring space 13 and avoiding the problem of concrete slurry flowing when pouring concrete.

[0032] It should be noted that an abutting nut is provided on the abutting screw, the abutting nut is located in the sealing gap, the grounding nut is connected to the bottom plate 24 of the fixing frame 20 , and the abutting screw 40 is rotated to adjust the force of abutting on the sealing plate 60 .

[0033] Further, the fixing structure further includes a first connecting screw 31 and a second connecting screw 32, wherein the first connecting screw 31 is passed through the first side plate 22, the first connecting screw 31 is connected to the first prefabricated plate 11, a nut is provided on the first connecting screw 31, and the fixing frame 20 fixes the first prefabricated plate 11 to the first side plate 22 through the first connecting screw 31 and the nut; the second connecting screw 32 is passed through the second side plate 23, the second connecting screw 32 is connected to the second prefabricated plate 12, a nut is provided on the second connecting screw 32, and the fixing frame 20 fixes the second prefabricated plate 12 to the second side plate 23 through the second connecting screw 32 and the nut. It should be noted that mounting holes are provided on both the first side plate 22 and the second side plate 23, and embedded nuts are provided on the first prefabricated plate 11 and the second prefabricated plate 12. During assembly, the fixing frame 20 is installed on the prefabricated composite wall, the mounting holes on the first side panel 22 are aligned with the embedded nuts on the first prefabricated panel 11, and the first connecting screw 31 is screwed through the screw holes on the first side panel 22 to the embedded nuts on the first prefabricated panel 11, and then a common nut is installed on the first connecting screw 31, so as to achieve fixation. Similarly, the mounting holes on the second side panel 23 are aligned with the embedded nuts on the second prefabricated panel 12, and the second connecting screw 32 is screwed through the screw holes on the second side panel 23 to the embedded nuts on the second prefabricated panel 12, and then a common nut is installed on the second connecting screw 32, so as to achieve fixation. The fixing frame 20 can be conveniently fixedly connected to the prefabricated panel by the connecting bolts, and the installation and disassembly process is very convenient.

[0034] According to a second embodiment of the present invention, a prefabricated composite wall assembly is provided, comprising the above-mentioned fixing structure.

[0035] Before pouring concrete, the edges of the precast panels need to be sealed. However, in the prior art, when pouring concrete after sealing the edges of the precast panels, there is a possibility that the concrete slurry will flow out and cause the precast composite wall to be contaminated, which will also seriously affect the construction quality of the precast composite wall.

[0036] In order to solve the above problem, in this embodiment, Figure 1 and Figure 3 As shown, the first prefabricated panel 11 and the second prefabricated panel 12 simultaneously form a top gap with the bottom of the assembly groove 21; the prefabricated composite wall assembly also includes a sealing plate 60, the sealing plate 60 is arranged to pass through the top gap, the sealing plate 60 is simultaneously arranged on the first prefabricated panel 11 and the second prefabricated panel 12, and the sealing plate 60 is used to seal the casting space 13; the fixing structure also includes a top screw, the top screw is passed through the fixing frame 20, the passing position of the top screw is located on the bottom of the assembly groove 21, the top screw is used to apply force to the sealing plate 60, and the sealing plate 60 is simultaneously attached to the first prefabricated panel 11 and the second prefabricated panel 12 and sealed under the action of the force applied by the top screw. By setting up a counter screw, a counter force can be applied to the sealing plate 60 through the counter screw. Under the action of the counter force, the sealing plate 60 will fit tightly against the edges of the first prefabricated plate 11 and the second prefabricated plate 12, thereby sealing the edges of the first prefabricated plate 11 and the second prefabricated plate 12, avoiding leakage of concrete slurry and improving the construction quality of the prefabricated composite plate.

[0037] It should be noted that the sealing plate 60 is a long strip of plate, and the length of the sealing plate 60 is usually greater than that of the fixed frame 20. Taking the rectangular window opening as an example, each side of the rectangle can be sealed with a sealing plate 60, and multiple fixed frames 20 can be set on each side of the rectangle. Each fixed frame 20 is provided with a top screw. The sealing pressure of multiple fixed frames 20 can be realized by top-pressing at multiple positions, thereby improving the sealing effect.

[0038] Furthermore, the prefabricated composite wall assembly further includes a spacer 70, which is disposed between the abutting screw and the sealing plate 60. The abutting screw abuts the spacer 70 against the sealing plate 60, and the sealing plate 60 abuts against the first prefabricated plate 11 and the second prefabricated plate 12 at the same time through the spacer 70. By providing the spacer 70, the force of the abutting screw can be evenly dispersed on the sealing plate 60, thereby improving the sealing effect. In addition, a top plate can be provided at the abutting top of the abutting screw, and the abutting force can also be evenly dispersed on the spacer 70 through the top plate, thereby preventing the spacer 70 from being damaged due to excessive local pressure, thereby improving the overall reliability.

[0039] The prefabricated composite wall assembly also includes a first nut 51 and a second nut 52, wherein the first nut 51 is embedded in the first prefabricated panel 11, and the second nut 52 is embedded in the second prefabricated panel 12. The first connecting screw 31 of the fixing structure is passed through the first side panel 22, and then the first connecting screw 31 is connected to the first nut 51, and the first connecting screw 31 is fixed by an ordinary nut. The fixing frame 20 fixes the first prefabricated panel 11 to the first side panel 22 by the first connecting screw 31 and the ordinary nut; similarly, the second connecting screw 32 is passed through the second side panel 23, and the second connecting screw 32 is connected to the second nut 52, and an ordinary nut is provided on the second connecting screw 32. The fixing frame 20 fixes the second prefabricated panel 12 to the second side panel 23 by the second connecting screw 32 and the ordinary nut. The fixing frame 20 can be conveniently fixedly connected to the prefabricated panel through the first connecting screw 31 and the first nut 51, the second connecting screw 32 and the second nut 52, and the installation and disassembly process is very convenient.

[0040] Furthermore, the first prefabricated panel 11 is provided with a first window opening, the second prefabricated panel 12 is provided with a second window opening, the first window opening corresponds to the second window opening, and the fixing frame 20 penetrates the first window opening and the second window opening at the same time. By installing the fixing frame 20 at the window opening position, the first prefabricated panel 11 and the second prefabricated panel 12 can be fixed, and the installation and removal process is very convenient and quick, and construction materials are saved, thereby greatly reducing time cost and material cost.

[0041] In actual use, the specific steps for fixing the structure are as follows:

[0042] First, determine the size of the prefabricated composite wall window opening, make the corresponding standard reinforcement frame according to the window opening size requirements, and embed the reserved nuts on both sides of the prefabricated composite wall window opening; when in use, seal the prefabricated composite wall window opening with a sealing plate 60, install the fixed frame 20, and align it with the embedded reserved nuts on both sides of the prefabricated composite wall window opening, use two connecting screws to pass through the fixed frame 20 and screw them to the reserved nuts on both sides of the prefabricated composite wall window opening, so that the fixed frame 20 is fixed on the prefabricated composite wall, and then use two adjustable abutting screws to pass through the bottom plate 24 of the fixed frame 20 and push it on the sealing plate 60 of the prefabricated wall.

[0043] After the concrete pouring of the prefabricated wall and window opening is completed, the standard fixing frame 20 can be removed by loosening the fixing connection screw rod, and can be directly used for the formwork of the prefabricated composite wall and window opening of the next layer. The present invention can be used immediately after entering the site, and can be recycled for many times. It has a reasonable design, reduces costs and increases efficiency, and can be widely used.

[0044] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated composite wall assembly, comprising a prefabricated composite wall, a fixing structure for the prefabricated composite wall and a sealing plate (60), wherein the prefabricated composite wall comprises a first prefabricated plate (11) and a second prefabricated plate (12) arranged at an interval, wherein a pouring space (13) for pouring concrete is formed between the first prefabricated plate (11) and the second prefabricated plate (12), wherein: The fixing structure comprises a fixing frame (20), a stop screw (40), a first connecting screw (31) and a second connecting screw (32); the sealing plate (60) is arranged on both the first prefabricated plate (11) and the second prefabricated plate (12); the sealing plate (60) is used to seal the casting space (13); The fixing frame (20) has an assembly groove (21), and the fixing frame (20) is detachably mounted on the prefabricated composite wall via the assembly groove (21); the assembly groove (21) has a first groove wall (221) and a second groove wall (231) arranged opposite to each other; the first groove wall (221) is connected to the first prefabricated panel (11), and the second groove wall (231) is connected to the second prefabricated panel (12); the fixing frame (20) fixes the relative position of the first prefabricated panel (11) and the second prefabricated panel (12) via the first groove wall (221) and the second groove wall (231); The abutting screw rod (40) is inserted through the fixing frame (20), and the insertion position of the abutting screw rod (40) is located at the bottom of the assembly groove (21). The abutting screw rod (40) is used to abut the sealing plate (60) against the first prefabricated plate (11) and the second prefabricated plate (12); The fixing frame (20) comprises a first side plate (22), a second side plate (23) and a bottom plate (24); the first side plate (22) and the second side plate (23) are arranged opposite to each other; the bottom plate (24) is connected between the first side plate (22) and the second side plate (23); the first side plate (22), the second side plate (23) and the bottom plate (24) enclose the assembly groove (21); the first groove wall (221) is located on the first side plate (22); and the second groove wall (231) is located on the second side plate (23); The first connecting screw (31) is passed through the first side plate (22), the first connecting screw (31) is connected to the first prefabricated plate (11), a nut is provided on the first connecting screw (31), and the fixing frame (20) fixes the first prefabricated plate (11) to the first side plate (22) via the first connecting screw (31) and the nut; The prefabricated composite wall assembly further comprises a first nut (51), wherein the first nut (51) is pre-buried in the first prefabricated plate (11), and the first connecting screw rod (31) is screwed to the first nut (51); The second connecting screw (32) is passed through the second side plate (23), the second connecting screw (32) is connected to the second prefabricated plate (12), a nut is provided on the second connecting screw (32), and the fixing frame (20) fixes the second prefabricated plate (12) to the second side plate (23) via the second connecting screw (32) and the nut; The prefabricated composite wall assembly further comprises a second nut (52), the second nut (52) being pre-buried in the second prefabricated plate (12), and the second connecting screw rod (32) being threadedly connected to the second nut (52).

2. The prefabricated composite wall assembly according to claim 1, characterized in that: The first prefabricated plate (11) is provided with a first window opening, the second prefabricated plate (12) is provided with a second window opening, the first window opening and the second window opening are located correspondingly, and the fixing frame (20) penetrates both the first window opening and the second window opening.

3. The prefabricated composite wall assembly according to claim 2, characterized in that: The first prefabricated plate (11) and the second prefabricated plate (12) simultaneously form a top gap with the bottom of the assembly groove (21), and the sealing plate (60) is arranged to penetrate the top gap; The push screw (40) is used to apply force to the sealing plate (60), and the sealing plate (60) is simultaneously attached to the first prefabricated plate (11) and the second prefabricated plate (12) and sealed under the action of the force applied by the push screw (40).

4. The prefabricated composite wall assembly according to claim 3, characterized in that: The prefabricated composite wall assembly also includes: A cushion block (70), wherein the cushion block (70) is arranged between the abutting screw rod (40) and the sealing plate (60), the abutting screw rod (40) abuts the cushion block (70) against the sealing plate (60), and the sealing plate (60) abuts against the first prefabricated plate (11) and the second prefabricated plate (12) simultaneously through the cushion block (70).

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